Siphon and like recorder



May 17, 1927-. 1,628

J. RIDDLE SIPHON AND LIKE RECORDER Filed NOV. 21, 1924 y FM |\\\\\\\\\\\\\\\\\w m INVENTOR:

JOHN RIDDLE By his Attorneys,

Patented May 17, 1927.

UNITED STATES 1,628,913 PATENT OFFICE.

JOHN RIDDLE, OF LONDON, ENGLAND, ASSIGNOR TO TELEGRAPH CONSTRUCTION AND MAINTENANCE COMPANY, LIMITED, OF LONDON, ENGLAND.

SIPHON AND LIKE RECORDER.

Application filed November 21, 1924, Serial No.

This invent-ion relates to recording instruments of the type in which amovement of a siphon, pen or other marking instrument is recorded on a moving slip of paper or the like.

The invention is particularly applicable to receiving instruments of delicate con struction, such as are employed for recording the weak current reversals transmitted through submarine cables of great length.

The invention relates more particularly to improved means for vibrating the siphon or other marking instrument towards or away from the paper, to minimize friction and ensure a read flow of ink.

According to the present invention, a strip of flexible material, such as phosphor bronze or silk carrying the siphon, pen or other marking instrument, is vibrated laterally (viz. in a direction at right angles to its axis) by means of a buzzer or the like acting to pull upon one end 01 the said strip, the other end of the strip being either fixed, or preferably connected to a spring, by means of which the strip can be put under the desired amount of tension.

In the accompanying drawing which shows diagrammatically one Way of carry- Ling out my invention, as applied to a siphon recorder applicable for use with a snbmarine cable, Figure 1 is a plan and Figure 2 is an elevation of Figure 1, some of the parts being omitted from the figures, for the sake of clearness.

1, 1 are the poles of a permanent magnet and 2 is a coil to which the cable is con nectcd and which is delicately suspended in the usual manner in the field of the magnet. 3 is a strip of phosphor bronze to which is fastened a carrier 4 for a si hon pen 5, one end of which dips into an ink reservoir 6, while the other marks a travelling strip of paper 7, passing over rollers 8 in the usual manner.

The strip 3 is connected at one end to the armature 9 of a buzzer 1.0 of usual construction, while the other end is connected to a spring 11 by means of which the strip is put under tension.

The coil 2 is connected to the carrier 4 by a glass tube 12 having at its ends short strips of phosphor bronze 13, 14, which are sufliciently flexible to allow the necessary turning movement of the coil and the carrier. The end of the strip 13 is provided 751,290, and in Great Britain August 16, 1924.

with an eye which engages a pin 15 011 the coil 2, while the end of the strip 14 is pro vided with a hookto enable it to engage any desired one of a number of holes 16 in the carrier 4.

In operation the armature 9 of the buzzer 10 acting to pull 011 the end of the strip 3 causes the strip to vibrate laterally, viz. in a direction at right angles to its axis.

lVhat I claim is 1. In a recording instrument of the type in which a movementof a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible material, a marking instrument carried wholly by said strip, and means giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip of material.

In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible material, a marking instrument carried wholly by said strip, and a buzzer giving a 'apid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip of material.

In a recording instrument of the type in which a movement of a marking instrument is recorded 011 amoving slip of material, the combination of a strip of flexible material, a marking instrument carried by said strip, a spring to which one end of the strip is connected, and means giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip of material.

4:. In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible material, a marking instrument carried by said strip, a spring to which one end of the strip is connected, and a buzzer giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip of material.

5. In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible springy material, a marking instrument carried by said strip, and means giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction or its length toward and away from the slip of material.

6. In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination oi: a strip of flexible springy material, a marking instrument car ried by said strip, and a buzzer giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip of material.

7. In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible s n'ingy material, a marking instrument carried by said strip, a spring to which one end oi the strip is connected, and means giving a rapid intermittent pull upon one end of said strip longitudinally thereof to vibrate said strip laterally or at an angle to the direction of its length toward and away from the slip oi material.

8. In a recording instrument of the type in which a movement of a marking instrument is recorded on a moving slip of material, the combination of a strip of flexible spring material, a marking instrument carried by said strip, a spring to which one end of the strip is connected, and a buzzer giving: a rapid intermittent pull upon one end of said strip longitudinally thereof to vib ate said strip laterally or at an angle to the d'rection of its length toward and away from the slip of material.

In testimony that I claim the foregoing as my invention have signed my name this QTth day of October, 19%.

JOHN RIDDLE. 

